Look at this way. If a person goes to buy a TAF and the cabinet is pristine but the play field has been replaced does that mean it's worth less? There's no "bible" of hardliners to determine what increases or decreases value it's all subjective. Overall condition should be the price marker .... always. If you like the game then just grab a matching set and be done with it. Seriously, any modification you do qualifies it for "that's not how it came off the line". A nice TAF is a nice TAF. And there's no one other than you that would be able to tell that you changed from an "orphan". My .02